As some one who has lived my SCHOOL&COLLEGE DAYS without knowing or using a compter, intenet or TV channel or mobile phones or iwhtout a fax machine or an electronic typre-writer, I am amazed how adances in technology, computer, information technology, media etc have transformed world as a whole as an entirely new magical world! One was compelled to read books to gain knowledge or information on any thing of interest for studies or research or any subject of interest and one was compelled to travel to far off places to access new information or knowledge or even to write an essay as part of school or college curriculum and librareies whether in the village or colleges were the knowledge providers for students & scientists & researchers alike! I am feeling jealous how internet , google, microsoft and e-books or podcasts are Helping millions& millions of truth seekers & researchers & humans all over the world l in the search for truth whether for general knowledge, for increasing the potential of one's brain and for education as a whole! I remember the days when I spent 3-4 years in University of Paris, France, making tours of all science labraries in Paris to look for refrences & details of many scientific publications of researchers & scientists while doing master Thesis "Diplome d'etudes approfonies) & for doing my Doctoral Thesis etc & doing the tours to libraries many times a week for more than 3 years & FEEL jealous that doctoral & master research students are able to access those scientific & research data so easily using internet, google, microsoft application by touch of a button on a computer or a mobile phone! Simply Awesome that past 50 years has been the most revolutionary & knowledge enhancing period of perhaps of the past 25000 Years ! Yes technologic advances of the past 50 years perhaps has transformed the world & these 50 years must rank as the most impressive of the past 25000 Years & more too